baber/WOPTO huggingface dataset:
Patent CN-1062348-A (CN)
Title: 从四甲基环丙烷羧酸经氰醇法制甲氰菊酯
Inventor: JIAQIANG CAI
IPC: C07C255/15
Filed: 1990-12-13
Abstract: 一种制备甲氰菊酯农药的方法，是采用向2，2，
3，3-四甲基环丙烷羧酸与二氯亚砜反应得到的酰
氯中滴加由3-苯氧基苯甲醛与氰化钠及酸在相转
移催化剂作用下反应得到的α-氰基-3-苯氧基苯
甲醇的反应得到。这种方法反应条件温和，反应过程
简单，易于控制，产率高，适合于工业化生产。
Patent CN-1060290-A (CN)
Inventor: SAMM WILFORD PS
IPC: C07B53/00
Filed: 1990-09-26
Abstract: 前手性、烯键式未饱和的基质在过渡金属催化剂
存在的条件下，与旋光活性的氢过氧化物反应，生成
手性的环氧化物。例如，手性缩水甘油是在一种钛的
醇盐/酒石酸盐催化剂存在的条件下，使用旋光活性
的乙苯氢过氧化物对烯丙醇进行不对称环氧化制得
的。该手性环氧化产物是用途广泛的合成中间体。
Patent CN-1100777-A (CN)
Title: 下挂潜没体的后弯管波力发电浮标
Inventor: GUANG LIANG XIAN
IPC: F03B13/16
Filed: 1993-09-24
Abstract: 一种下挂潜没体的后弯管波力发电浮标，该浮标
包括后弯管和柱形浮室，在浮标的尾部用挂链悬挂一
个潜没体，用以扩宽浮标的响应周期，改善长周期区
的波能转换效率。
Patent CN-1128081-A (CN)
Inventor: PEETERS LOUIS CAROLINA ALFONS
IPC: H01J61/073
Filed: 1995-04-25
Abstract: 高压放电灯有电极(3)，各电极在靠近电极棒(4)的顶端(5)处有钨丝(6)的卷绕层。电极棒例如由于凹部(71)和凸起(72)而具有非圆形的横截面，卷绕的钨丝(6)与非圆形横截面基本上周边地接触，从而使钨丝固定在电极棒上。
Patent CN-1178554-A (CN)
Inventor: COLLINS D
IPC: A61K47/54
Filed: 1996-01-11
Abstract: 本发明涉及化学修饰的共有干扰素,它具有一个或多个结合于共有干扰素的糖基配体。本发明还提供了含有这种类似物的药物组合物和用该组合物治疗疾病的方法。
Patent CN-1169426-A (CN)
Title: 新的哒嗪酮衍生物
Inventor: ALLEN DARIN ARTHUR
IPC: C07D237/14
Filed: 1997-05-21
Abstract: 结构式Ⅰ的化合物及其药学上可接受的盐,其中:R 10 是由结构式(A),(B)和(C)表示的一个基团;其余取代基的定义如说明书中所述。它们是前列腺素G/H合酶的抑制剂,也是抗炎和镇痛剂。
Patent CN-1221378-A (CN)
Title: 与主传动装置无关的、起惰性舵或主动操纵部件作用的船用装置
Inventor: JERGENS D
IPC: B63H25/38
Filed: 1997-05-26
Abstract: 不依赖于船舶主推进系统、起惰性舵或主动操纵部件作用的船用装置,其中一个或多个水翼偏心地且能绕竖直轴旋转地安装在能绕中心点旋转的水平盘上。该纵向水翼可由一与圆盘的主驱动装置不联系的驱动装置控制,使其在用作船的惰性舵时,该圆盘被固定在一适合的位置,该纵向水翼由驱动装置在船头至船尾方向上对齐,该驱动装置还将所需的舵摆幅传送至该纵向水翼;而当起主动操纵部件作用时,依据所需的推进方向,旋转该圆盘,控制分开设置的驱动装置,使纵向水翼使周围的水产生运动,由此产生定向的推力。
Patent CR-20110035-A (CR)
Title: Composiciones y Métodos para Anticuerpos que se dirigen a la Proteína de Complemento C5
Inventor: DIEFENBACH-STREIBER BEATE
IPC: A61K39/395
Filed: 2011-01-21
Abstract: La presente invención se refiere a anticuerpos que se dirigen a la proteína de complemento C5, y a composiciones y métodos de uso de los mismos.
Patent CR-20130617-A (CR)
Title: Derivados de piridin-2(1h)-ona útiles como medicamentos para el tratamiento de trastornos mieloproliferativos, rechazo de trasplantes, enfermedades mediadas por el sistema inmune y enfermedades inflamatorias
Inventor: EASTWOOD PAUL ROBERT
IPC: A61K31/52
Filed: 2013-11-22
Abstract: Se describen compuestos que tienen la estructura química representada por la fórmula (I); así como un procedimiento para su preparación, composiciones farmacéuticas que los comprenden y su uso en terapia como inhibidores de quinasas Janus (JAK).
Patent CR-20190042-A (CR)
Inventor: KHAIRKHAHAN ALEX
IPC: A61B17/32
Filed: 2017-07-06
Abstract: Un sistema para extirpar un clip implantado que se aproxima a las valvas opuestas de la válvula en una válvula del corazón incluye un catéter de captura configurado para ser introducido cerca de las valvas de la válvula en un lado del clip, un catéter de transferencia configurado para ser introducido cerca de las valvas de la válvula en el otro lado del clip, y una herramienta de corte configurada para ser desplegada entre los catéteres de captura y transferencia y para ser acoplado contra el tejido de al menos una de las valvas de la válvula y para cortar el clip. Se puede usar opcionalmente un catéter de extracción para extraer el clip del corazón
Patent EC-SP920817-A (EC)
Title: Compuesto de fluoroalquenilo y su uso como repelentes de pestes
Inventor: RUMINSKI PETER GERRARD
IPC: C07C/
Filed: 1992-02-28
Abstract: Compuestos de alqueno fluorados útiles para y métodos para controlar nemátodos, insectos, y acáridos que depredan sobre cultivos agrícolas. Los compuestos polares, por ejemplo, 3, 4, 4-trifluoro-3-buten-1-amina o ácido 3, 4, 4- trifluorometil-buténóico, son particularmente útiles para el control sistémico de pestes. Se proveen también métodos de intermediarios novedosos para la preparación de 3, 4, 4-trifluoro-3-buten-1-amina.
Patent FI-20020800-A (FI)
Inventor: OKHOTNIKOV OLEG
IPC: H01S3/106
Filed: 2002-04-26
Abstract: The invention relates to an optically pumped multilayered modulator having surface-normal geometry. The multilayer structure comprises an absorber section through which an optical signal ( 401 ) to be modulated is coupled from an input ( 401 ) to an output ( 400 ). The multilayer structure further comprises control means for supplying a control signal for controlling the transmission characteristics of the absorber section. The control signal is generated by an in-plane waveguide-type laser integrated monolithically with the saturable absorption region. The in-plane control laser includes waveguide regions ( 405 ) and multiple-quantum-well layers ( 409 ) used as a gain medium. The laser beam is adapted to travel through the absorber section in order to modulate the transmission characteristics of the absorber section.
Patent FR-1600836-A (FR)
Title: Methyl-1,2,3,6-tetrahydrophthalic acid anhydride
IPC: C07D307/89
Filed: 1968-07-10
Granted: 1970-08-03
Abstract: Process for the prepn. of methyl-1,2,3,6-tetrahydrophthalic acid anhydride comprises reacting (1) hydrocarbons, prepd. by pyrolysis of a mixture of hydrocarbons such as naphtha, kerosene and gas oil in the presence of water vapor and composed of C4 to C6 fractions contng. less than 3.0% by wt. of cyclopentadiene and less than 3% by wt. of butadiene (the % by wt. is based upon the sum of isoprene and trans-1,3- pentadiene), with (2) maleic anhydride in the presence of (3) polymerisation inhibitor. A mixture of the anhydrides is prepd. in high yield without the need to isolate 1,3-pentadiene and isoprene from the hydrocarbon mixture.
Patent FR-1601335-A (FR)
Title: Chenilles for imitation astrakhan fur
IPC: D04D3/00
Filed: 1968-12-04
Granted: 1970-08-17
Abstract: Short juxtaposed strands of bright yarn, pref. of cellulose acetate, are pressed between two resistant yarns, pref. cotton, which are twisted while passing through a heated tube, in which the brush-like strand ends are rolled into a smooth, regular cylinder. The cotton yarns have no adhesive and are hard false-twisted, to 500 turns/m. to give a residual twist of 450/m which is enough to entrap the acetate strands between the yarns.
Patent FR-1602518-A (FR)
Title: Composite synthetic yarn from more than two types of
IPC: D02G1/02
Filed: 1968-08-19
Granted: 1970-12-21
Abstract: Synthetic textile yarn is composed of more than two types of thermoplastic filaments, with different flex resistances, the amount of filaments with the greatest flex resistance being more than 10% and the flex resistance of these filaments being less than 10 x the average flex resistance of the other filaments. The composite yarn has a considerably improved appearance, and excellent mechanical properties. Crimped yarns with high bulkiness can be produced.
Patent FR-1605440-A (FR)
Title: Spring tined fork for harvesting machine - has tubular short shaft retaining resilient tines forming double fork
IPC: A01D78/06
Filed: 1968-05-27
Granted: 1975-11-21
Abstract: The harvesting machine for working crops comprises a rotary hollow spindle (4) with a toothed clutch coupling (11) to a short hollow trumpet-ended shaft (8) with a coaxial compression spring retained by a central transverse bolt (7). The spring has an extended straight portion at either end forming a two pronged fork which rotates with the arm and maintains a resilient pressure which may be connected by manual adjustment. Attachment of the forked tubular section is maintained by a spring loaded clamping lever (5) which rests against the support arm when the forked member is clamped.
Patent GB-1015535-A (GB)
Abstract: 1,015,535. Hydraulic turbine plant. SULZER BROS. Ltd. Jan 13, 1964 [Jan. 29, 1963], No. 1489/64. Heading F1T. A storage pumping plant is connected to at least two storage basins disposed at different heights and includes an H.P. and an L.P. hydraulic machine, each having guide apparatus, both machines being connected to a motorgenerator and at least one of them being a reversible machine (i.e. a machine acting as a turbine for one direction of flow and as a pump for the other direction); means connecting the upper storage basin to the H.P. machine; means connecting the L.P. machine to a lower storage basin; means connecting the H.P. machine to the L.P. machine; and means connecting the H.P. machine to the lower storage basin. The storage pumping plant shown comprises two (or more) groups, each comprising a motorgenerator 2 connected to an H.P. hydraulic machine 5 and an L.P. hydraulic machine 6. When water from a higher storage basin 7 is to be used to produce electricity, it is supplied through pipes 9, 10 to the H.P. machine 5, and all or some of the water leaving the latter may be supplied through pipes 12, 14 to the L.P. machine 6, the remainder flowing through pipe 13 to a lower storage basin 8. The machine 6 discharges to a basin 22. The machines 5, 6 act as turbines to drive the machine 2 as a generator, their guide apparatus being adjusted to give maximum overall efficiency. When water from the lower basin 8 is used, it is supplied to the machine 6 only, and the guide apparatus of the latter is adjusted to give it maximum efficiency. If the machine 6 is not reversible to act as a pump, the machine 5 acts alone as a pump during pumping (the machine 2 then acting as a motor), its guide apparatus being adjusted to give maximum pumping efficiency, and water is pumped from basin 8 to basin 7. If the machine 6 is reversible to act as a pump, it can be used to pump water from basin 22 to basin 8, or the machines 5 and 6 can act in series to pump water from basin 22 to basin 7.
Patent GB-1047306-A (GB)
IPC: C08G65/48
Abstract: 1,047,306. Polyphenyl ethers. MONSANTO CO. Aug. 6, 1964 [Aug. 7, 1963], No. 32067/64. Heading C2C. [Also in Division C5] Polyphenyl ethers, preferably containing 3-7 benzene rings linked by oxygen atoms, are treated with an anion exchange resin with the object of improving their oxidative stability. The ethers may have been pretreated with Al 2 O 3  at 100-150‹ C. and may also contain 0À1 wt. per cent Ph 4 Sn.
Patent GB-1051748-A (GB)
IPC: B65D47/30
Abstract: 1,051,748. Rotary plug stoppers. POLYTOP CORPORATION. Sept. 3, 1964. No. 36184/64. Heading B8T. A dispensing closure for a container comprises a cap 16, a fitment 32 and a dispensing spout 56, the spout being disposed between the cap and fitment when the closure is assembled (Fig. 2, not shown) and the spout 56 being rotat - able from the closed position shown in Fig. 2 to an open position (Fig. 4, not shown) so that a passage 64 in the spout is in alignment with an opening 66 in the fitment. The cap 16 has threads 28 or other attachment means and a groove 26 for engaging a flange 36 on the fitment. The cap top 18 has a slot 22 extending partially into the skirt 20 and two studs 24 for fitting into corresponding holes 42 in the fitment. When the closure is assembled, the spout fits into a cavity 44 provided in the fitment directly below the slot 22. A cylindrical portion 58 of the spout rotatably engages a curved wall 48, containing the opening 66, and has two spigots 62 rotatably engaging curved walls 52 in the fitment. An air vent 74 is provided in the fitment (Fig. 2, not shown) and is closable by a plug 78 on the spout. A sealing ridge 70 (Fig. 2, not shown) is provided around the opening 66 and a closure ring 72 is provided to form a seal-with the container neck.
Patent GB-1054387-A (GB)
IPC: F01B25/00
Abstract: 1,054,387. Draining engine cylinders. PUSNES MEK. VERKSTED A.S. Oct. 21, 1964 [Oct. 22, 1963], No. 43007/64. Heading F2T. In a steam engine for ship winches, the slide valve casings 4 are situated lower than the steam cylinders 7 and the casing of the reversing valve 2 and steam channels of the engine are so arranged that the steam channels form a constantly sloping passage such that water pockets occur in the engine neither for live steam nor for exhaust, whereby under the influence of gravity only condensate from the live steam side runs out of the engine into the inlet pipe for steam and condensate from the exhaust side runs out of the engine in the outlet pipe or passage. A condensate outlet extends from the lowest part of the live steam side of the engine to the exhaust side.
Patent GB-1084043-A (GB)
IPC: H01L25/11
Abstract: 1,084,043. Organo-tin compounds. MONSANTO CO. Sept. 18, 1964 [Sept. 19, 1963], No. 38305/64. Heading C2J. [Also in Divisions C3 and C5] The invention comprises novel organo-tin compounds of general formula in which each of R<SP>1</SP> and R<SP>2</SP> is an aryloxyaryl group, containing two or three benzene rings and n is an integer. They are prepared by the general reaction of aryloxyaryl magnesium halides with a tin dihalide. The compounds are generaly low polymers with n up to 10 and the polymeric form is obtained from the monomer upon standing. The benzene rings may be fused or separate. Grignard reagents that may be used are para-phenoxyphenylmagnesium bromide, meta-phenoxyphenylmagnesium bromide, para - (para - biphenylyloxy) phenylmagnesium bromide and para-naphthyloxyphenylmagnesium bromide. The reactions are carried out under anhydrous conditions in an organic solvent, which may be an acyclic ether, e.g. diethyl ether or the dimethyl ether of ethylene glycol or a cyclic ether, e.g. tetrahydrofuran and at a temperature of 50- 150‹ C., e.g. reflux temperature. The compounds, which are used as additives to lubricant compositions comprising a polyphenyl ether or polyphenyl polyether or a mixture of both, may be bis-(phenoxyphenyl) tin, bis- (diphenylylhoxyphenyl) tin, bis-(phenyloxydiphenylyl) tin, bis-(naphthyloxyphenyl) tin and (biphenylyloxyphenyl)(phenoxyphenyl) tin.
Patent GB-1143673-A (GB)
IPC: G03C1/025
Abstract: 1,143,673. Photographic silver halide emulsions. EASTMAN KODAK CO. April 29, 1966 [April 29, 1965], No. 18820/66. Heading G2C. A liquid photographic silver halide emulsion is treated by passing a direct electric current therethrough between electrodes immersed therein. The current may be passed between Ag or C electrodes, 3" apart, at a voltage of 3-12 volts. Specified binders are gelatine and mixtures of gelatine and polyvinyl alcohol, gum arabic, ethyl acrylateacrylic acid copolymer and butyl acrylate-acrylic acid copolymer. The emulsion may be liquefied by heating e.g. to 40‹C. The emulsion may be chemically sensitized, before or after the treatment, with e.g. labile sulphur or selenium compounds or noble metal salts or compounds, many of which are specified and which include auric chloride-3-ethyl-5 [3-ethyl-2(3H)-benzoxazolylidene) ethylidene] rhodamine. The emulsion may also contain anti-foggants e.g. azoindenes, triazoles, Zn or Cd salts, carbodymethylmercapto compounds and disulphides, and speed increasing compounds e.g. quaternary ammonium salts, polyethylene glycols and thiopolymers. The treatment may be carried out to effect partial fogging of the emulsion to form a direct positive emulsion, which treatment may be in conjunction with the use of formaldehyde or Sn Cl 2 .
Patent GB-1226897-A (GB)
IPC: C08K5/36
Filed: 1969-07-04
Abstract: 1,226,897. Thioether-esters. J. R. GEIGY A.G. 4 July, 1969 [5 July, 1968], No. 33906/69. Heading C2C. [Also in Division C3] Novel, stabilizing compounds I, II and III wherein R is p-hydroxy-di-alkyl-phenyl (one alkyl is m while the other is at any available position), R 1 , R 2 , R 3 , R<SP>1</SP> 1 , R<SP>1</SP> 2  and R<SP>1</SP> 3  are H, alkyl, phenyl, aralkyl or C m H 2m CO 2 R, where m is 0 to 6, R 4  is C n H 2n+1 , where n is 1 to 24, cyclohexyl, phenyl, aralkyl or (CH 2 ) y CO 2 -alkyl, - phenyl or -aralkyl, where y is 1 or 2, R 5  is C n H 2n , where n is 2 to 12, CH 2 OH 2 OCH 2 CH 2 , CH 2 CH 2 SCH 2 CH 2  1,4-cyclohexyl, 1,4-phenylene, 4,4<SP>1</SP>-C 6 H 4 OC 6 H 4  or 4,4<SP>1</SP>-C 6 H 4 SC 6 H 4  with the proviso that in I and II at least one of R 1 , R 2  or R 3  is C m H 2m CO 2 R and in III at least one of R 1 , R 2 , R 3 , R<SP>1</SP> 1 , R<SP>1</SP> 2  or R<SP>1</SP> 3  is C m H 2m CO 2 R and wherein phenyl and aralkyl may be substituted by halogen, alkyl, alkoxy, hydroxy, alkylthio or alkoxycarbonyl, are obtained by reacting R 1 R 2 C = CR 3 CO 2 R with H 2 S, R 4 SH or HSR 5 SH; reaction products containing carboxy can be esterified utilizing ROH.
Patent GB-1227268-A (GB)
IPC: C08F16/12
Filed: 1969-06-25
Abstract: 1,227,268. Ethylene/vinyl alkyl ether copolymers. NATIONAL DISTILLERS & CHEMICAL CORP. 25 June, 1969 [26 June, 1968], No. 32170/69. Heading C3P. A normally solid copolymer of ethylene with preferably 5-10 weight per cent, based on the weight of the copolymer, of cetyl vinyl ether and/or n-octadecyl vinyl ether, exhibiting a melt index between 4 and 11, and a coefficient of friction between 0À15 and 5À0, is prepared by reacting the ethylene and vinyl ether in a solvent at a pressure of from 15,000 to 40,000 p.s.i. and a temperature of between 120‹ and 315‹ C. in the presence of a catalyst. Ethylene may be fed to the reactor at a pressure of between 20,000 and 20,250 p.s.i. and a temperature of between 21‹ and 46‹ C. Preferred catalysts are t-butyl perpivalate, t-butyl perbenzoate and diisopropyl peroxydicarbonate, although others are mentioned.
Patent GB-1227442-A (GB)
IPC: F16H27/04
Filed: 1968-05-09
Abstract: 1,227,442. Intermittent driving mechanisms. HOLZER PATENT A.G. 9 May, 1968 [18 May, 1967], No. 22076/68. Heading F2Q. [Also in Divisions G2 and H1] In an intermittent driving mechanism, for electrical switchgear of laundry or industrial installations, meters, position indicators, or film projector or camera film feeds, a worm-wheel 1, which is to be driven intermittently, is meshed by an axially movable worm 2 which is fast, by a hollow shaft 4, with a cam follower 8 co-operating with a stationary cam 11 formed as a single start helix of substantially the same lead as the worm, the arrangement being such that as the worm is continuously rotated it screws back from the stationary cam, and does not rotate the worm-wheel 1, until after one worm revolution the cam follower passes the cam nose 13, the worm being then axially thrust, by a spring 9, back to its original axial position, and the worm-wheel being thereby rotated. The worm 2 is continuously rotated by a motor (not shown) through gearing 6, a worm 7 and a wormwheel 5 rotatable with, but axially slidable with respect to, the hollow shaft 4. The worm 2 is axially slidably and rotatably mounted on a spindle 3 secured to the cam 11, said spindle being pivotally supported about a hinge 14 so that the worm 2 may be swung, against a return spring 15, out of mesh with the wormwheel 1 to permit alteration of the setting of the latter. The cam 11 may have a sharp or gradual fall profile and may be rotationally adjustable for switching advance or retard. The hollow shaft 4 may be fitted with auxiliary switch cams arranged to stop drive in a given position.
Patent GB-1227632-A (GB)
IPC: C08F2/00
Filed: 1969-08-27
Abstract: 1,227,632. Rotary shaft seals. EISENWERKE KAISERSLAUTERN G.m.b.H. 27 Aug., 1969 [30 Aug., 1968], No. 42674/69. Heading F2B. A sealing arrangement for a rotatable shaft of a pump or stirring device 13 comprises main and standby seal units, the main unit including two axially-spaced pairs 10a, 10b and 11a, 11b of spring-loaded stationary and rotary rings enclosed in a chamber 27 and the standby unit including two concentric and radially-spaced pairs 28a, 28b and 30a, 30b of spring-loaded stationary and rotary rings enclosed in a chamber 34 remote from the end of the seal housing 15 adjoining the pump or stirring device 13. The rotary rings 10b, 11a of the main unit are mounted by washers 10c, 11c in carriers 18, 20 which are urged in opposite directions by springs 25, 26. Under normal operating conditions, sealing fluid is supplied to the chamber 27 through an inlet a from a tank (38), Fig. 2 (not shown), at a pressure in excess of that within the pump or stirring device 13. The fluid leaves the chamber 27 through an outlet b and passes through a throttle valve (36) to the inlet c of the chamber 34 whence it leaves through an outlet d back to the tank (38), the pressure in the chamber 27 being controlled by the adjustment of the valve (36). The stationary rings 28b, 30b of the standby unit are urged into contact with the rotary rings 28a, 30a by springs 32a, 33a and under normal operating conditions are not subjected to fluid pressure loading. In the event of failure of the main unit, the fluid pressure in the chamber 27 is reduced and a valve (37), after the outlet d, is closed either manually or automatically to create a pressure build-up in the chamber 34 and consequent loading of the rings in the standby unit; alternatively in the event of failure of the main unit, the fluid may be arranged to by-pass the main unit by use of valves (40), (41) so as to direct the fluid directly to the chamber 34 of the standby unit.
Patent GB-1227874-A (GB)
IPC: A61C1/18
Filed: 1968-05-16
Abstract: 1,227,874. Stud and socket fastenings. MICRO-MEGA S.A. 16 May, 1968 [22 May, 1967], No. 23440/68. Heading E2B. [Also in Division A5] Releasable fastening devices are provided in a dental tool comprising a hollow tubular handpiece 2 including a protective sleeve fitting over the projecting slip-sleeve 3 of the motor 4. The slip-sleeve carries a spring-blade 6 along its length, fixed at one end by ring 7 in groove 8 and carrying a stud 9 towards its free end. The stud 9 projects into the groove 10 of a conventional handpiece without a protective sleeve and may be released by button 11. Alternatively the handpiece 2 may be released by rotation about the sleeve 3 until a stud 13 in the groove 10 cooperates with stud 9 and depresses it, thus releasing the handpiece 2.
Patent GB-1231327-A (GB)
IPC: C08F236/12
Filed: 1969-07-11
Abstract: 1,231,327. Copolymer of butadiene and acrylonitrile. MARUZEN PETROCHEMICAL CO. 11 July, 1969 [12 July, 1968; 24 July, 1968; 16 Aug., 1968], No. 34954/69. Heading C3P. An alternate copolymer of butadiene and acrylonitrile is prepared by polymerizing the monomers in the liquid phase with a catalyst system formed by mixing vanadium (V) oxychloride or chromium (VI) oxychloride with a trialkylaluminium compound. In the examples acrylonitrile and liquid butadiene are polymerized using VOCl 3  in methylene chloride, tetrachloroethylene or toluene or CrO 2 Cl 2  in methylene chloride or n-heptane and triethylaluminium or triisobutylaluminium in toluene.
Patent GB-1232671-A (GB)
IPC: G06F3/037
Filed: 1968-07-08
Abstract: 1,232,671. Light pens. INTERNATIONAL BUSINESS MACHINES CORP. July 8, 1968 [July 14, 1967), No.32409/68. Heading G1A. [Also in Division G2] A light pen for use with cathode ray tubes having face plates of different thicknesses includes a light gathering system comprising a pair of positive lenses 36, 38 spaced apart by a distance equal to the sum of their focal lengths. The image is produced on the end 44 of a fibre optic bundle 46 sheathed in a rigid sleeve 48 which is adjustable by means of spider 50 to achieve focusing. Alternatively a stop may be placed at the common focus of the lenses 36, 38 to produce a telecentric system.
Patent GB-1238083-A (GB)
IPC: A44C5/10
Filed: 1969-06-16
Abstract: 1,238,083. Link strap. HILDYARD & SHINDLER Ltd.; R. F. EDWARDS and I. SHINDLER. 12 June, 1970 [16 June, 1969], No. 30333/69. Heading A3H. The links of an ornamental strap comprise base-plate members 10 and decorative cover members 11. The base-plate members have rolled ends forming hinge portions 13, 14 which receive hinge pins 12. The decorative cover member has downwardly projecting lugs 15 which are soldered to the base plate. (For Figures see next page.)
Patent GB-1250329-A (GB)
IPC: B01D46/24
Filed: 1968-12-16
Abstract: 1,250,329. Air filter. NEFCO FILTER CORP. 16 Dec., 1968 [14 Dec., 1967], No. 59671/68. Heading B1T. A filter unit (e.g. for a tractor engine airintake) comprises a working filter element 16 and a downstream safety filter element 13 arranged for flow in series (arrows 21, 22, 23); however, a bleed passage 19 always allows a minor fraction of the air to bypass element 16 (arrows 24, 26, 27). This arrangement is stated to increase the life of element 16, see Fig. 2 (not shown).